/Engine/Plugins/FX/Niagara/Source/Niagara/Public/NiagaraComponent.h
Sets a Niagara bool parameter by name, overriding locally if necessary.
[UFUNCTION](Programming/UnrealArchitecture/Reference/Functions)(BlueprintCallable, Category=Niagara, Meta=(DisplayName="Set Niagara Variable By String (Bool)", Keywords="user parameter variable bool")) void SetNiagaraVariableBool ( const [FString](API\Runtime\Core\Containers\FString) & InVariableName, bool InValue )